0000000000141411

AUTHOR

Maria S. Galletero

showing 3 related works from this author

Electrolyte-driven electrochemical amplification by poly(thienylacetylene) encapsulated within Zeolite Y

2006

Electrochemical oxidation and reduction of poly(thienylacetylene) encapsulated inside zeolite Y (PTA@Y) exhibit with large anodic and cathodic doping currents with a significant reversibility. Thienyl groups lower the redox potential of polyacetylene chain whereas encapsulation stabilizes the resulting charged radical species blocking undesired post electron-transfer cross-link reactions. Size-exclusion effects associated produces an electrolyte-dependent amplification of currents recorded at PTA@Y-modified electrodes for electrochemical processes involving selected substrates in solution, namely, dinitrobiphenyl and benzidine. Keywords: Poly(thienylacetylene), Zeolite Y, Electrochemistry, …

ChemistryElectrolyteElectrochemistryElectrocatalystPhotochemistryRedoxBenzidinelcsh:ChemistryElectron transferchemistry.chemical_compoundPolyacetylenelcsh:Industrial electrochemistrylcsh:QD1-999ElectrodeElectrochemistryOrganic chemistrylcsh:TP250-261Electrochemistry Communications
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Spontaneous doping and magnetic properties of polyacetylene and polypropyne synthesized in situ in Ni-exchanged mordenite and mesoporous MCM-41

2001

Upon polymerisation of acetylene and propyne inside the channels of Ni2+-exchanged mordenite and mesoporous MCM-41 spontaneous doping and formation of antiferromagnetic NiO clusters are observed to various extents. The population of polarons present in the final polymer/zeolite composite: (i) is higher for polyacetylene than for polypropyne; (ii) increases with polymerisation temperature in the range 100 to 335 °C; (iii) increases with the C content; and (iv) is higher for mordenite than for MCM-41 under the same conditions. The use of Ni(0),H+-mordenite for polymer formation enhances the polaron population of the resulting polymer by over one order of magnitude. Doped polyacetylene encapsu…

education.field_of_studyMaterials scienceInorganic chemistryPopulationGeneral Physics and AstronomyPropyneMordenitechemistry.chemical_compoundPolyacetylenePolymerizationchemistryAcetyleneMCM-41Physical and Theoretical ChemistryMesoporous materialeducationPhysical Chemistry Chemical Physics
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Electrocatalysis of neurotransmitter catecholamines by 2,4,6-triphenylpyrylium ion immobilized inside zeolite Y supercages

1999

2,4,6-Triphenylpyrylium ions entrapped inside the supercages of Y zeolite exert a remarkable catalytic effect toward the electrochemical oxidation of dopamine and norepinephrine (neurotrasmitter catecholamines) in neutral aqueous media. Domenech Carbo, Antonio, Antonio.Domenech@uv.es

endocrine system diseasesUNESCO::QUÍMICAInorganic chemistryElectrocatalysis ; Trphenylpyrydium ; Y zeolite ; Neurotransmitter ; Catalytic effectNanotechnologyElectrochemistryElectrocatalyst:QUÍMICA [UNESCO]CatalysisCatalytic effectIonNorepinephrine (medication)chemistry.chemical_compoundDopamineCatalytic effectMaterials ChemistrymedicineTrphenylpyrydiumNeurotransmitterNeurotransmitterZeoliteUNESCO::QUÍMICA::Química analíticaY zeoliteMetals and AlloysGeneral ChemistrySurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialschemistryCeramics and Composites:QUÍMICA::Química analítica [UNESCO]Electrocatalysismedicine.drug
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